반응성, 분산, 산성염료 종류에 따른 폐수처리 시 거동 비교

The study has attempted to compare the behavior of reactive, disperse and acid dyes when wastewater from these three kinds of typical dyestuffs were treated by chemical coagulation and NF membrane in pilot scale. Disperse dyeing wastewater showed the tendency of easier removal in TOC and COD and especially in color. This is probably due to low water-solubility of disperse dyes compared with reactive and acid dyes and is a positive result in terms of water reuse. Bio-kinetic constants, ${\mu}$max, $K_s$ of reactive, disperse and acid dyes were obtained, implying that their biodegradability are not significantly different.